Transportation officials said Morgan Jade Lake of Sunderland, in Calvert County, was driving a 2007 Chrysler Sebring when a tractor-trailer struck her car, sending it over the bridge railing and into water near the eastbound start of the span.

The car fell about 40 feet into the water and landed in about 6 to 8 feet of water, and Lake managed to get out of the vehicle and over to some nearby rocks, officials said.

The 22-year-old woman was taken by helicopter to Maryland Shock Trauma Center, and was discharged Saturday, a hospital spokeswoman said.

On Sunday, police said the 2010 International Truck/Tractor that struck Lake's car was operated by Gabor Lovasz of Charlottetown, Canada, and the truck was pulling a trailer. Lovasz was not injured.

Another vehicle, a 2014 Mazda, was also struck, but no one in that car was injured.

The eastbound lanes of the bridge were re-opened after Maryland Transportation Authority engineers inspected the bridge, said First Sgt. Jonathan Green, a spokesman for the transportation authority.

Green said no charges have been filed by the transportation authority, which has jurisdiction over the bridge, and that the investigation is ongoing. He said the woman's car was removed from the water Saturday.

Police are asking any witnesses to the crash to contact investigators at 443-915-7797.

Scott Fortney was three cars back on the Chesapeake Bay Bridge when a car was struck by a tractor trailer and flipped over the barrier. Morgan Lake emerged and clung to the rocks waiting to be rescued. (Scott Fortney)

An Annapolis woman has been sentenced to three years in prison for posing as a physician's assistant after she diagnosed 137 children and wrote more than 400 prescriptions without a medical license, federal authorities said on Friday.